Hello,
Thanks for reaching out! I'm Microsoft user like you.
- Disable any Antivirus program or Windows firewall you may have for temporary purpose.
Please download EOS Utility 3.16.11 from Canon which is supported for Windows 11 and firmware up to 1.8.0.
https://in.canon/support/0200687802
In case of additional questions, reach out back to me, and I will be happy to help and try our best to resolve your issue.
Best Regards,
Prakash